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<p>报告具有缺少的或不明确的依赖项的 Bean 类中的注入点。</p>
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<p><b>示例：</b></p>
<pre><code lang="java">
  interface Engine {}

  @Singleton
  class GasEngine implements Engine {}

  @Singleton
  class ElectricEngine implements Engine {}

  @Singleton
  class Car {

    @Inject
    Engine <b>engine</b>; // 不明确的依赖关系: 有多个 Bean 与注入点相匹配
  }
</code></pre>
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